Periodic Table
The columns on the periodic table are called...
Groups/Familes
When core electrons prevent valence electrons from feeling the full positive charge of the nucleus, it is called...
Shielding
What are the four electron subshells?
spdf
What is the name of this polyatomic ion: HSO4-
Hydrogen Sulfate or Bisulfate
Which category of elements is commonly used to make computer chips and solar cells due to their ability to conduct electricity only under certain conditions?
Metalloids
The Lanthanides and Actinides are also called...
Rare Earth Elements
What is Coulombic attraction?
The attraction between positive and negative charges
What element goes with this electron configuration: 1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d1?
Yttrium
What is the charge of elements in group 3A?
+3
Which element is an alkaline earth metal in period 5?
Strontium (Sr)
Silicon is an example of a...
Metalloid
Which element has the lowest electronegativity: Strontium or Barium?
Barium
What is the full electron configuration of Bromine?
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p5
What is the name of this polyatomic ion: NH4+
Ammonium
How many significant figures does 5.020 have?
4
Which classification of elements shares electrons in reactions with elements like themselves?
Nonmetals
Which of the following elements has the largest atomic radius: Gold or Lead?
Gold
How many orbitals does the d subshell have?
4
What is formed when an atom gains one or more electrons?
Anion
Is density an intensive or extensive property?
Intensive
How many core electrons does Bismuth have?
78
Which of the following atoms has the largest atomic radius: Ca or Ca+?
Ca
What is the full electron configuration of Osmium?
1s2 2s2 2p6 3s2 3p6 4s2 3d10 4p6 5s2 4d10 5p6 6s2 4f14 5d6
What is the chemical formula of Acetate?
C2H3O2-
Why does ionization energy increase across a period?
The number of protons increases, creating a stronger positive charge, which increases the energy required to remove an electron.